Dynon Support-
Similar question, 2006 CTsw (Rotax 912) with factory installed D120 (with software Version 5.4.0). I am interested in installing a Westach 399S10 two wire oil temperature sensor as a substitute for the one wire Rotax VDO unit. It is Sensor Type 9, as you noted above, in your documentation.
I looked at the Oil Temperature Sensor types on the D120 Oil Temperature Sensor menu, and it has a list of sensor types 1-6. Based on what I read above, am I correct that I can not just hook one wire of the Westach sensor to the connector that goes to the VDO sensor and the other wire to ground and select one of the sensor types listed on the Oil Temperature Sensor menu? (doing so would be easy...)
If I must connect it to a GP input, where do I find those inputs? Also, as you know, for Rotax, the two CHT sensors are connected through GP1 and GP2. To make the Oil Temperature GP3, do I follow the installation manual instructions for CHT but use GP3 and then select Oil Temperature instead of CHT?
If I go through a GP input, will a larger menu that includes Sensor type 9 appear (rather than types 1-6 as I current see)?
As you know, this sensor has resistance of 3570 ohms at 70 degrees F, 1130 ohms at 120 degrees F, and 251 ohms at 200 degrees F (from Westach catalog, page 35 http://www.westach.com/catalog/index.php?page=PAGE35s.html).
Thanks.
Fred